(19)

(11)

EP 2 825 274 A1

(12)

(43) Date of publication: 21.01.2015 Bulletin 2015/04 (21) Application number: 13761031.7 (22) Date of filing: 08.03.2013

(51) International Patent Classification (IPC):  B01D 3/26(2006.01) B01D 3/00(2006.01) B01D 3/32(2006.01) F28C 3/06(2006.01) (86) International application number: PCT/US2013/029901 (87) International publication number: WO 2013/138185 (19.09.2013 Gazette 2013/38)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 12.03.2012 US 201261609680 P (71) Applicant: Koch-Glitsch, LP Wichita, KS 67220 (US)	(72) Inventors: NIEUWOUDT, Izak Wichita, Kansas 67206 (US) HEADLEY, Darran Matthew Valley Centerm, Kansas 67147 (US) EWY, David R. Goddard, Kansas 67052 (US) GAGE, Gary W. Grand Prairie, Texas 75051 (US) (74) Representative: Haley, Stephen  Gill Jennings & Every LLP The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)